CN217335209U - Fused salt heat storage plant external power generation system of thermal power generating unit - Google Patents
Fused salt heat storage plant external power generation system of thermal power generating unit Download PDFInfo
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- CN217335209U CN217335209U CN202220829592.8U CN202220829592U CN217335209U CN 217335209 U CN217335209 U CN 217335209U CN 202220829592 U CN202220829592 U CN 202220829592U CN 217335209 U CN217335209 U CN 217335209U
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Abstract
The utility model discloses external power generation system of thermal power generating unit fused salt heat storage factory, include: the system comprises an industrial molten salt heat storage and power supply unit, a molten salt heating unit and a molten salt plant external power supply and gas supply unit; the utility model discloses a fuse salt heating unit, including factory electricity fuse salt heat storage power supply unit, fuse salt heating unit, air feed unit, power supply unit, industrial electricity fuse salt heat storage power supply unit exchanges the high pressure side and becomes the generator export through high factory transformer, factory electricity fuse salt heat storage power supply unit voltage reduction becomes the low pressure side and is connected to fuse salt electric heating device in the fuse salt heating unit, fuse salt heating unit high temperature jar is connected to the hot drive arrangement in the fuse salt heating unit, the outer salt-water heat exchanger of factory is connected with in the outer power supply of fuse salt factory, the air feed unit the outer salt heating unit low temperature jar. The utility model provides an outer power generation system of thermal power unit fused salt heat-retaining plant is to thermal power unit, to the external gas of plant, power consumption mill, the outer power generation system of thermal power unit fused salt heat-retaining plant can provide and stabilize high quality vapor, through the outer generator of plant, reduces the power consumption of mill, reduces the manufacturing cost of mill.
Description
Technical Field
The utility model relates to an outer power generation system of thermal power unit fused salt heat storage factory, concretely relates to constructs outer power generation system of thermal power unit fused salt heat storage factory.
Background
In recent years, with the development of the energy storage industry, various novel energy storage technologies are broken through continuously, and demonstration applications are realized in more and more scenes, wherein the novel energy storage technologies mainly include a heat storage technology, a hydrogen energy storage technology, an electromagnetic energy storage technology, a flywheel energy storage technology and the like. The heat storage technology belongs to an energy type energy storage technology, has high energy density, low cost, long service life, various utilization modes and high comprehensive heat utilization efficiency, and can play a great role in the application fields of renewable energy consumption, clean heating and solar photo-thermal power station energy storage systems. In recent years, the heat storage technologies that have attracted much attention mainly include molten salt heat storage technologies and high-temperature phase change heat storage technologies. The molten salt heat storage technology has the main advantages of large scale, convenient use by matching with a conventional gas engine and is mainly applied to a large-scale tower type photo-thermal power generation system and a groove type photo-thermal power generation system.
Disclosure of Invention
The utility model provides an outer power generation system of thermal power unit fused salt heat storage factory, construct the outer power generation system of thermal power unit fused salt heat storage factory, service power and 6kV 400V step-down diversion fused salt heating device power supply through thermal power unit 6kV, store in the low temperature jar 300 ℃ liquid fused salt and become 600 ℃ high temperature liquid fused salt through fused salt heating device and store in the high temperature jar, 600 ℃ high temperature liquid fused salt gets into the outer salt-water heat exchanger of factory through heat drive arrangement, will heat to the oxygen-removed water that accords with the outer gas equipment of factory through the booster pump/260 ℃ steam that the outer power generation of factory required, steam gets into outer industrial gas apparatus of factory/small capacity gas turbine respectively through gas and gas generation valve, steam promotes the gas turbine rotation and drives the generator rotation, realize the outer electricity generation of factory, return to the low temperature jar behind the 600 ℃ high temperature liquid fused salt heat release, participate in the next external power generation and gas supply circulation of the molten salt plant. The constructed fused salt heat storage plant external power generation system of the thermal power generating unit can realize external gas supply and power generation, can further excavate deep peak regulation capacity for the thermal power generating unit, provides stable high-quality water vapor for external gas and power utilization plants, and reduces the power consumption of the plants through the external power generation machine of the plant.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
thermal power unit fused salt stores up outer power generation system of heat plant includes: the system comprises an industrial molten salt heat storage and power supply unit, a molten salt heating unit and a molten salt plant external power supply and gas supply unit;
the utility model discloses a fuse salt heating unit, including factory electricity fuse salt heat storage power supply unit, fuse salt heating unit, air feed unit, power supply unit, industrial electricity fuse salt heat storage power supply unit exchanges the high pressure side and becomes the generator export through high factory transformer, factory electricity fuse salt heat storage power supply unit voltage reduction becomes the low pressure side and is connected to fuse salt electric heating device in the fuse salt heating unit, fuse salt heating unit high temperature jar is connected to the hot drive arrangement in the fuse salt heating unit, the outer salt-water heat exchanger of factory is connected with in the outer power supply of fuse salt factory, the air feed unit the outer salt heating unit low temperature jar.
The utility model discloses a further improvement lies in, service molten salt heat-retaining power supply unit includes: the system comprises a 20 kV-to-6.3 kV high-voltage power station, a 6.3kV power station bus tie switch, a 6.3kV power station bus, a fused salt heating device grid-connected switch, a fused salt heating device voltage reduction switch, a # fused salt heating device and a 6kV1A section bus;
the 20kV becomes 6.3kV high factory and becomes high-voltage side and be connected to the generator export, and the electric energy comes from the generator, 6.3kV factory is with the generating line pass through 6.3kV factory with the busbar tie switch with 20kV becomes 6.3kV high factory and becomes low-voltage side and connect, fused salt heating device step down and becomes high-voltage side and pass through fused salt heating device is incorporated into the power networks the switch with 6.3kV factory links to each other with the generating line, fused salt heating device step down and becomes low-voltage side and be connected to fused salt heating device.
The utility model discloses further improvement lies in, the molten salt heating device electric energy comes from 6.3kV mill uses the generating line, and the power supply is stable.
The utility model discloses further improvement lies in, melt salt heating device adopts heating resistor silk and automatic judgement zero crossing point switch, realizes through the automatic judgement zero crossing point switch melt salt heating device power control.
The utility model discloses further improvement lies in, melt salt heating device and belong to high-power consumption device, when hot drive arrangement moves, can further excavate thermal power generating unit degree of depth peak regulation ability.
The utility model discloses a further improvement lies in, fused salt heating unit includes: the system comprises a liquid molten salt low-temperature tank, a low-temperature liquid molten salt water inlet valve, a high-temperature liquid molten salt water outlet valve, a liquid molten salt high-temperature tank and a high-temperature liquid molten salt thermal driving device;
the liquid molten salt low-temperature tank is connected with the molten salt heating device through the low-temperature liquid molten salt water inlet valve, the low-temperature liquid molten salt is heated by the molten salt heating device to form high-temperature liquid molten salt, the liquid molten salt heating temperature is adjusted by controlling the power of the molten salt heating device, the high-temperature liquid molten salt enters the liquid molten salt high-temperature tank through the high-temperature liquid molten salt water outlet valve, and the liquid molten salt high-temperature tank is connected with the high-temperature liquid molten salt thermal driving device.
The utility model discloses further improvement lies in, when needs supply heat to the factory outside, liquid high temperature fused salt passes through transmission outside power supply, the air feed unit to fused salt factory after the hot drive arrangement of liquid fused salt pressurizes.
The utility model discloses a further improvement lies in, fused salt factory external power supply, air feed unit include: the system comprises a salt-water heat exchanger, a deaerated water booster pump, a deaerated water inlet valve, industrial deaerated water, an air inlet valve of an external plant gas device, an air inlet valve of an external plant gas turbine, an external plant gas turbine and an external plant power generator;
liquid high-temperature molten salt in the liquid molten salt high-temperature tank enters the salt-water heat exchanger through the thermal driving device, industrial deoxygenated water enters the salt-water heat exchanger through the deoxygenated water inlet valve and the deoxygenated water booster pump to form high-pressure deoxygenated water, the industrial high-pressure deoxygenated water is heated to a temperature higher than 260 ℃ through the liquid high-temperature molten salt to form industrial high-pressure water vapor, the gas is supplied to the external gas equipment through the external gas equipment inlet valve, and the high-pressure water vapor pushes the external gas turbine to drive the external power generator to generate power through the external gas turbine inlet valve.
Compared with the prior art, the utility model discloses following profitable technological effect has at least:
1. the utility model discloses the hot drive arrangement electric energy comes from the station service electricity, and the power supply is stable, and the charges of electricity are cheap, are applicable to fused salt heat storage factory external power generation system.
2. The utility model discloses heat-melting drive arrangement adopts heating resistor silk and automatic judgement zero crossing point switch, control high temperature tank temperature in the fused salt heating unit. The related equipment has lower cost and is more suitable for the fused salt heating system of thermal power.
3. The utility model provides a fused salt factory external power supply, air feed unit can realize using the gas equipment air feed outside power plant factory, can promote the factory external gas turbine and drive the power generation of factory external generator.
4. The utility model provides a thermal power unit fused salt heat-retaining factory outer power generation system to thermal power unit, the hot drive arrangement in the fused salt heating unit belongs to high-power consumption device, when hot drive arrangement moves, can further excavate thermal power unit degree of depth peak regulation ability.
5. The utility model provides an outer power generation system of thermal power unit fused salt heat-retaining plant is to thermal power unit, to the external gas of plant, power consumption mill, the outer power generation system of thermal power unit fused salt heat-retaining plant can provide and stabilize high quality vapor, through the outer generator of plant, reduces the power consumption of mill, reduces the manufacturing cost of mill.
Drawings
FIG. 1 is a diagram of an external power generation system of a molten salt heat storage plant of a thermal power generating unit.
Description of reference numerals:
1-service molten salt heat storage and power supply unit; 2-molten salt heating unit; and 3, a power supply and gas supply unit outside the molten salt plant. 1-20 kV to 6.3kV high-voltage substation; 1-2-6.3 kV factory bus tie switch; 1-3-6.3 kV factory bus; 1-4-fused salt heating device grid-connected switch; 1-5-reducing pressure of a molten salt heating device; 1-6-molten salt heating device. 2-1-liquid molten salt low-temperature tank; 2-a low-temperature liquid molten salt water inlet valve; 2-3-high temperature liquid molten salt outlet valve; 2-4-liquid molten salt high-temperature tank; 2-5-high temperature liquid molten salt heat driving device. 3-1-salt-water heat exchanger; 3-2-deaerated water booster pump; 3-a deaerated water inlet valve; 3-4-industrial deoxygenated water; 3-5-air intake valve of external gas equipment; 3-6-external gas equipment; 3-7-inlet valve of external air turbine; 3-8-an outside plant gas turbine; 3-9-an off-plant generator.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings.
As shown in fig. 1, the utility model provides an external power generation system of fused salt heat storage plant of thermal power generating unit includes: the system comprises an industrial molten salt heat storage and power supply unit 1, a molten salt heating unit 2 and a molten salt factory external power supply and gas supply unit 3; the industrial molten salt heat storage and power supply unit 1 is connected to an outlet of a power generator through a high-voltage transformer, the industrial molten salt heat storage and power supply unit 2 is connected to a molten salt electric heating device in the molten salt heating unit 1 through a voltage reduction and low-voltage transformation side, the molten salt heating unit 2 is connected to a high-temperature tank in the molten salt heating unit, and the external salt-water heat exchanger in the molten salt plant external power supply and gas supply unit 3 is connected to a low-temperature tank in the molten salt heating unit 2.
The service molten salt heat storage and power supply unit 1 includes: the system comprises 20kV to 6.3kV high-voltage plant to 1-1, 6.3kV plant bus tie switches 1-2, 6.3kV plant buses 1-3, fused salt heating device grid-connected switches 1-4, fused salt heating device voltage reduction to 1-5, and # fused salt heating device 1-6 and 6kV1A section buses 1-7.
The molten salt heating unit 2 includes: the system comprises a liquid molten salt low-temperature tank 2-1, a low-temperature liquid molten salt inlet valve 2-2, a high-temperature liquid molten salt outlet valve 2-3, a liquid molten salt high-temperature tank 2-4 and a high-temperature liquid molten salt thermal driving device 2-5.
The molten salt plant external power supply and gas supply unit 3 comprises: 3-1 parts of salt-water heat exchanger, 3-2 parts of deaerated water booster pump, 3-3 parts of deaerated water inlet valve, 3-4 parts of industrial deaerated water, 3-5 parts of air inlet valve of external gas equipment, 3-6 parts of external gas equipment, 3-7 parts of air inlet valve of external gas turbine, 3-8 parts of external gas turbine and 3-9 parts of external power generator.
The 20kV becomes 6.3kV high factory and becomes 1-1 high pressure side and be connected to the generator export, the electric energy comes from the generator, 6.3kV factory with generating line 1-3 through 6.3kV factory with generating line tie switch 1-2 with 20kV becomes 6.3kV high factory and becomes 1-1 low pressure side and connect, fused salt heating device step-down become 1-5 high pressure side through fused salt heating device grid-connected switch 1-4 with 6.3kV factory with generating line 1-3 links to each other, fused salt heating device step-down become 1-5 low pressure side and be connected to fused salt heating device 1-6.
The electric energy of the molten salt heating device 1-6 comes from the 6.3kV factory bus 1-3, the power supply is stable, the electricity cost is only the power generation cost, the molten salt heating device 1-6 adopts a heating resistance wire and an automatic zero-crossing point judging switch, and the power control of the molten salt heating device 1-6 is realized through the automatic zero-crossing point judging switch. The molten salt heating devices 1-6 belong to high-power electric devices, and when the thermal driving device operates, the deep peak regulation capacity of the thermal power generating unit can be further excavated.
The liquid molten salt low-temperature tank 2-1 is connected with the molten salt heating device 1-6 through the low-temperature liquid molten salt inlet valve 2-2, low-temperature liquid molten salt is heated by the molten salt heating device 1-6 to form high-temperature liquid molten salt, the heating temperature of the liquid molten salt is adjusted by controlling the power of the molten salt heating device 1-6, and the high-temperature liquid molten salt enters the liquid molten salt high-temperature tank 2-4 through the high-temperature liquid molten salt outlet valve 2-3, the liquid molten salt high-temperature tank 2-4 is connected with the high-temperature liquid molten salt thermal driving device 2-5, when heat supply is needed to be carried out outside the molten salt plant, the liquid high-temperature molten salt is pressurized by the liquid molten salt heat driving device 2-5 and then is transmitted to the power and gas supply unit 3 outside the molten salt plant.
The liquid high-temperature molten salt in the liquid molten salt high-temperature tank 2-4 enters the salt-water heat exchanger 3-1 through the thermal driving device 2-5, the industrial deoxygenated water 3-4 enters the salt-water heat exchanger 3-1 through the deoxygenated water inlet valve 3-3 and the deoxygenated water booster pump 3-2 to form high-pressure deoxygenated water, the industrial high-pressure deoxygenated water is heated to a temperature higher than 260 ℃ through the liquid high-temperature molten salt to form industrial high-pressure steam, the air is supplied to the off-plant air equipment 3-6 through the off-plant air equipment air inlet valve 3-5, and the high-pressure steam can also push the off-plant air turbine 3-8 through the off-plant air turbine air inlet valve 3-7 to drive the off-plant power generation motor 3-9 to generate power. The fused salt heat storage plant external power generation system of the thermal power generating unit can provide stable high-quality water vapor, and reduces the power consumption of a plant and the production cost of the plant through the plant external power generation machine.
Claims (6)
1. Thermal power unit fused salt stores up outer power generation system of heat plant characterized in that includes: the system comprises an industrial molten salt heat storage and power supply unit, a molten salt heating unit and a molten salt plant external power supply and gas supply unit;
the utility model discloses a fuse salt heating unit, including factory electricity fuse salt heat storage power supply unit, fuse salt heating unit, air feed unit, power supply unit, industrial electricity fuse salt heat storage power supply unit exchanges the high pressure side and becomes the generator export through high factory transformer, factory electricity fuse salt heat storage power supply unit voltage reduction becomes the low pressure side and is connected to fuse salt electric heating device in the fuse salt heating unit, fuse salt heating unit high temperature jar is connected to the hot drive arrangement in the fuse salt heating unit, the outer salt-water heat exchanger of factory is connected with in the outer power supply of fuse salt factory, the air feed unit the outer salt heating unit low temperature jar.
2. The fused salt heat storage and supply plant external power generation system of thermal power generating unit according to claim 1, wherein the fused salt heat storage and supply plant power supply unit comprises: the system comprises a 20 kV-to-6.3 kV high-voltage power station, a 6.3kV power station bus tie switch, a 6.3kV power station bus, a fused salt heating device grid-connected switch, a fused salt heating device voltage reduction switch, a # fused salt heating device and a 6kV1A section bus;
the 20kV becomes 6.3kV high-voltage power plant and becomes high-voltage side and be connected to the generator export, and the electric energy comes from the generator, 6.3kV factory is with the generating line pass through 6.3kV factory with the generating line contact switch with 20kV becomes 6.3kV high-voltage power plant and becomes the step-down voltage side and connect, the molten salt heating device falls to become high-voltage side and passes through molten salt heating device grid-connected switch with 6.3kV factory with the generating line link to each other, the molten salt heating device falls to become low-voltage side and is connected to the molten salt heating device.
3. The fused salt heat storage ex-plant power generation system of the thermal power generating unit according to claim 2, wherein electric energy of the fused salt heating device is from the 6.3kV plant bus, and power supply is stable.
4. The external power generation system of the fused salt heat storage plant of the thermal power generating unit as claimed in claim 2, wherein the fused salt heating device adopts a heating resistance wire and an automatic zero-crossing point judging switch, and the power control of the fused salt heating device is realized through the automatic zero-crossing point judging switch.
5. The thermal power generating unit molten salt heat storage offsite power generation system according to claim 2, characterized in that the molten salt heating unit includes: the system comprises a liquid molten salt low-temperature tank, a low-temperature liquid molten salt water inlet valve, a high-temperature liquid molten salt water outlet valve, a liquid molten salt high-temperature tank and a high-temperature liquid molten salt thermal driving device;
the liquid molten salt low-temperature tank is connected with the molten salt heating device through the low-temperature liquid molten salt water inlet valve, the low-temperature liquid molten salt is heated by the molten salt heating device to form high-temperature liquid molten salt, the heating temperature of the liquid molten salt is adjusted by controlling the power of the molten salt heating device, the high-temperature liquid molten salt enters the liquid molten salt high-temperature tank through the high-temperature liquid molten salt water outlet valve, and the liquid molten salt high-temperature tank is connected with the high-temperature liquid molten salt thermal driving device.
6. The external power generation system of the thermal power generating unit molten salt heat storage plant according to claim 5, wherein the external power supply and gas supply unit of the molten salt plant comprises: the system comprises a salt-water heat exchanger, a deoxygenated water booster pump, a deoxygenated water inlet valve, industrial deoxygenated water, an air inlet valve of an external gas device, an air inlet valve of an external gas turbine, an external gas turbine and an external power generator;
liquid high-temperature molten salt in the liquid molten salt high-temperature tank enters the salt-water heat exchanger through the thermal driving device, industrial deoxygenated water enters the salt-water heat exchanger through the deoxygenated water inlet valve and the deoxygenated water booster pump to form high-pressure deoxygenated water, the industrial high-pressure deoxygenated water is heated to a temperature higher than 260 ℃ through the liquid high-temperature molten salt to form industrial high-pressure water vapor, the gas is supplied to the external gas equipment through the external gas equipment inlet valve, and the high-pressure water vapor pushes the external gas turbine to drive the external power generator to generate power through the external gas turbine inlet valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220829592.8U CN217335209U (en) | 2022-04-11 | 2022-04-11 | Fused salt heat storage plant external power generation system of thermal power generating unit |
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| CN202220829592.8U CN217335209U (en) | 2022-04-11 | 2022-04-11 | Fused salt heat storage plant external power generation system of thermal power generating unit |
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| CN217335209U true CN217335209U (en) | 2022-08-30 |
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| CN202220829592.8U Active CN217335209U (en) | 2022-04-11 | 2022-04-11 | Fused salt heat storage plant external power generation system of thermal power generating unit |
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